# Seat Pricing (Notchset): prompt.md (v1.0.0)

- id: `seat-pricing` · version 1.0.0 · block · pro (Pro)
- category: Marketing
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/seat-pricing`
- npm dependencies: class-variance-authority@^0.7
- registry dependencies: utils, @beautiful-ui/segmented-control, https://beautiful-ui.dev/r/notchset-foundation.json
- docs: https://beautiful-ui.dev/components/seat-pricing
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

Pricing by team size: a seat count set with a stepper, a slider (arrows, Shift for 10, Home and End) or a clickable band ruler; plans as a ledger where the cheapest that fits is BEST FIT and selected and plans too small fade with USE n SEATS; a summary with the rolling total, the per-seat price and the yearly saving.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: `class-variance-authority@^0.7`.
- Files: `components/ui/notchset/blocks/seat-pricing.tsx`; shared code: `lib/beautiful-ui/notchset/instrument.tsx`, `lib/beautiful-ui/notchset/root.ts`, `lib/beautiful-ui/notchset/button-variants.ts`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `segmented-control`, `notchset-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `SeatPricing`, and every exported type.
- CSS: the install adds the notchset foundation (tokens, keyframes, motion levels) to your global stylesheet once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--notchset-*` custom properties (`--notchset-check`, `--notchset-control-edge`, `--notchset-draw-from`, `--notchset-ease-bloom`, `--notchset-ease-glide`, `--notchset-ease-key-down`, `--notchset-ease-key-up`, `--notchset-ease-travel`, `--notchset-fade`, `--notchset-focus-color`, `--notchset-focus-inset`, `--notchset-grow-to`, `--notchset-key-down`, `--notchset-key-up`, `--notchset-life-from`, `--notchset-life-ms`, `--notchset-node-blink`, `--notchset-node-bloom`, `--notchset-node-delay`, `--notchset-plate-color`, `--notchset-rise-from`, `--notchset-rule`, `--notchset-scan-to`, `--notchset-scroll`, `--notchset-signal`, `--notchset-sweep-to`, `--notchset-travel`). Never add Tailwind colour classes inside the component.

```tsx
import { SeatPricing } from "@/components/ui/notchset/blocks/seat-pricing";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `SeatPricing` | `seat-pricing` | Size controls, the plan ledger and the summary. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `SoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/notchset-sound.json`, import from `@/components/ui/notchset/sound-provider`); `useSound()` gives `muted` and `setMuted` for a mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/notchset/blocks/seat-pricing.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- seat pricing, per seat pricing, team size, pricing slider, pricing calculator, plans by seats, Notchset
- Per-seat plans with seat ranges
- A pricing page where team size decides the plan

### Not when
- Usage-based bills: use the Usage Estimator
- Comparing features: use Plan Compare

## Mistakes
- Charge from your billing API, not from this arithmetic
- Keep plan seat ranges contiguous, or some sizes fit nothing

## Usage

```tsx
import { SeatPricing } from "@/components/ui/notchset/blocks/seat-pricing";

export function Pricing() {
  return (
    <SeatPricing
      plans={[
        { id: "builder", name: "Builder", description: "For one person.", features: ["5K runs"], perSeat: { monthly: 29, yearly: 23 }, seats: { min: 1, max: 5 }, typical: 3 },
        { id: "team", name: "Team", description: "For a team.", features: ["50K runs", "SSO"], perSeat: { monthly: 24, yearly: 19 }, seats: { min: 6, max: 50 }, typical: 18 },
      ]}
      onStart={(plan, seats, billing) => fetch("/api/trial", { method: "POST", body: JSON.stringify({ plan: plan.id, seats, billing }) })}
    />
  );
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `plans` | `{ id, name, description, features, perSeat: { monthly, yearly }, seats: { min, max }, typical }[]` |  | typical is where a click on the plan's band moves the slider. |
| `range / defaultSeats` | `{ min, max } / number` |  | The slider's range and the starting count. |
| `onStart / startLabel / currency` | `(plan, seats, billing) => Promise / (plan) => string / (n) => string` |  | Start the plan (trial or checkout), its label, and money formatting. |

Full docs: https://beautiful-ui.dev/components/seat-pricing

## Customising
- Colours: the component reads your shadcn tokens (`--background`, `--foreground`, `--border` …), refined by the `--notchset-*` tokens. The signal colour is `--notchset-signal` (it falls back to `--destructive`). Set tokens on `:root`, or on any container to retheme one area.
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| ← → | One seat (Shift: ten) |
| Home / End | The ends of the range |
| Tab | Stepper, billing, slider, bands, plans and start |

## Performance

- One pointer handler with capture; prices are plain arithmetic.

## Responsive

- Plan rows stack under 620px (container width).

## Motion inventory

| Interaction | What moves |
|---|---|
| Seats | The count, prices and total roll; the thumb glides (280ms) and squashes while dragged |
| Best fit | A 3px bar grows down the chosen plan (300ms) |
| Bands | The band you're in inks |

## Accessibility contract (preserve when editing)
- The seat slider is a real slider (role, value, value text) with the stepper beside it
- Plans are a radio group; a plan that can't fit says why and offers the fix
- The start result is announced; failures say so

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/seat-pricing
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

## Credits
- Built on shadcn/ui (https://ui.shadcn.com)

The notchset foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/notchset-foundation.json.